1.Bluetooth specification:V5.3

2.Bluetooth Profile:A2DP, AVRCP, HFP, HSP

3.Working voltage:3.1V-4.2V

4.Charging voltage:5V-1A

5.Speaker specification: 8mm*2

6.Frequency response: 20Hz-20kHz

7.Impedance:320

8. Battery capacity of the headset: 50MAH

9. Battery capacity of the storage box:2000MAH

10.Transmission distance:>10-20M

11.Call Play time:About 2-4 h

12.Charging time of headset:1.5h

13.Charging time of the Charging box:2h

1.Bluetooth specification:V5.3

2.Bluetooth Profile:A2DP, AVRCP, HFP, HSP

3.Working voltage:3.1V-4.2V

4.Charging voltage:5V-1A

5.Speaker specification: 8mm*2

6.Frequency response: 20Hz-20kHz

7.Impedance:320

8. Battery capacity of the headset: 50MAH

9. Battery capacity of the storage box:2000MAH

10.Transmission distance:>10-20M

11.Call Play time:About 2-4 h

12.Charging time of headset:1.5h

13.Charging time of the Charging box:2h